Utami, Indri Sari, et al. “Understanding The Nature of Science (NOS) of In-Service Science Teachers: Instructional Practices and Their Implications on Renewable Energy”. Jurnal Penelitian & Pengembangan Pendidikan Fisika, vol. 8, no. 2, Dec. 2022, pp. 315-24, doi:10.21009/1.08213.